The so-called gas-plants trial of two former senior political aides heard today how they deliberately destroyed documents in the Ontario premier's office.
In an unproven opening statement, the prosecution said David Livingston and Laura Miller acted illegally and contrary to the public interest.
The duo had a legal duty to preserve the records, the prosecutor said.
The documents related to the politically-explosive issue of then-premier Dalton McGuinty's decision to cancel two gas plants ahead of the provincial election in 2011.
Livingston and Miller have pleaded not guilty to charges of breach of trust, mischief, and unlawful use of a computer.
A computer forensics expert for the prosecution is the first witness at the Ontario court trial in Toronto.